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Finding the Fourth Proportional to 64,707.14, 97,060.77 and 20,337.77

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Solution

The fourth proportional to 64,707.14, 97,060.77 and 20,337.77 is: 30,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,707.14 : 97,060.77 = 20,337.77 : x
  2. Step 2: Convert to fraction form
    64,707.14/97,060.77 = 20,337.77/x
  3. Step 3: Cross multiply
    64,707.14x = 97,060.77 × 20,337.77
  4. Step 4: Simplify right side
    64,707.14x = 1,973,999,130.98
  5. Step 5: Solve for x
    x = 1,973,999,130.98/64,707.14
  6. Step 6: Final answer
    x = 30,506.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.